کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
865397 | 909665 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Consistency Conditions for Cone-Beam CT Data Acquired with a Straight-Line Source Trajectory
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Consistency Conditions for Cone-Beam CT Data Acquired with a Straight-Line Source Trajectory Consistency Conditions for Cone-Beam CT Data Acquired with a Straight-Line Source Trajectory](/preview/png/865397.png)
چکیده انگلیسی
A consistency condition is developed for computed tomography (CT) projection data acquired from a straight-line X-ray source trajectory. The condition states that integrals of normalized projection data along detector lines parallel to the X-ray path must be equal. The projection data is required to be untruncated only along the detector lines parallel to the X-ray path, a less restrictive requirement compared to Fourier conditions that necessitate completely untruncated data. The condition is implemented numerically on simple image functions, a discretization error bound is estimated, and detection of motion inconsistencies is demonstrated. The results show that the consistency condition may be used to quantitatively compare the quality of projection data sets obtained from different scans of the same image object.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tsinghua Science & Technology - Volume 15, Issue 1, February 2010, Pages 56-61
Journal: Tsinghua Science & Technology - Volume 15, Issue 1, February 2010, Pages 56-61
نویسندگان
Margo S Levine, Emil Y Sidky, Xiaochuan Pan,